Means for collecting and returning condensation in steam systems



BEST AVAILABLE COPE Nov. 2 1926. 1,605,467

' A w. H. ROSE MEANS FOR COLLECTING AND Rs'runkme couuausu'lon In sum SYSTEMS Filed Sept. 14. 1922 2 Sheets-Sheet 1 n ifii I BEST AVAlLABLE com Nov. 2 1926. 1,605,467

w. H. ROSE mums FOR cemsc'rms'wn RETURNING coummsuron IN swam SYSTEMS Filed Sept. 14. 1922 2 Sheets-Sheet 2 as y 27 In/eklor,

BEST AVAILABLE COPi Patented Nov. 2, 1926.

"UNITED?FsTTATES BAIT-TENT OFFICE.

s wmmmiaunjaos xae roitomr 'olvrnnio,CANADA, ASSIGNOR, Y Mnsnn AS- i MB MEANS Theobjects of this; ventionsarezto'devise a -mans for :COllCtiIlg. andsreturning lthe condensation from a steam system tomboiler which will not be liable 1 to get 1 out of order wand dispenses 1= with '.=the use of a circulating pump, beingiadaptedfor-ipumping-ofi llqulds against acpressuretor equalizing {pressures in flUiddJ neSn lie-:52! pii ii nu; 1: m

'lhe principal :featurei of the invent,1o n

10 cons'ists in..the-. novelp'arrangenientaofacreceiving itankiin' ai steam; system @and a -lbal .1

anced pressurenontrol .valvez-intheliye steam line: whereby! the: hydrostatic1;.pressure ..-Qt ;a column cfrvv'aterlfed from; the; tank .-1s utilized,

sE'Lr; or 'rononro, CANADA;

non COLLECTING AND nnrunnme-"coivnnnsn'rion IN sTEAiu SYSTEMS) a *1 Application fi1ed=September.-14, 1922:. serial n6. 588,273. 2

one is to say, by its .qSaaian iteither-opens} or closes access to thetank 2. Thevalve stem is operated by a diaphragm ltland a pipe 17 connects the topof the diaphragm chamber to thetank 1 at a point adjacent to the top so that when high agpressurasteamenters the tank l it will flow 4 intojthe pipe 51;? 1 and operate the diaphragm 1 oopenthe valve 14; to allow the sation to flowinto the tank 2. I

Illhepipe, lines from the tanks are continned bey nd; the T86 and ,7 and lead. to the central-boiler connection 18, check valves 19. and 2Q-being interposedto allow outflow conden- 15 to open the'steam zvalve andliallovvi-admission; from-and prevent back flow to the tanks.

of-iboiler'pressure to equalize; the pressure in Fig? 1A2 furthers important featurenconsists." 1n

the-inovel! larrangeme'ntyand construction?- of 20 valv'esiwith 'aipai-r ;o:l:' equalizing ztanks: Whereby; a 3 continuous. flow. of the condensed .wate will be imaintainedei gIn -.the)-dr'awings,. Figurea-l is a dia'grammatic elevation. of a' duplex. installation.

- Eig-ure 2Lis anaenlarged ;elevational; view partly in section of .thevalves leading to and fromthetanks: a

. Figure 13 is"? a. longitudinal; sectional view ofithe .valveii-for controlling. the direction of flOW 0ftll e1iIlflOW-illg-= condensatiom. T

'2 FigurrA "is ailongitudinal sectional view of theibalancedsteami controlvalve. 111 the handling of condensation in .a steam plant it has been the commonpracticeatouse dumptra'pssand circulating pumps but these devices. are. :subj ectz to= peculiar ';defects .that z Gate; valves21and 22 are also provided to regulate thespeed of flow.

High pressure steam pipes 23 and 24: are connected by the pipes 25 and 26 to the .top ofg the tanks -1 and 2 respectively and air valves 27 and 28 are arranged in said connections.v Balanced valves 29 and 30 are arranged in the branch steam lines leading to the tanks. @These valves are provided with. diajphragm's 31 .operatingthe valve spindles.-

Pipes 32 and-i33connecte'd with the-tanks land 2 respectively at a point adjacent to the top, extend downwardly and'a-re con nected.at-the bottom-.ends-into the main flow lines from the bottomkofthetanks;;check valves 342- and Bil-being interposed at the botl- Branch pipes tively.. =The valves 29. and 30 are balanced areihighly :uildesirable-andifthef zpresentuimi 38, balancing steam pip'es=39;being arrangedventionz: overcomesrs these objectionable; teas turesmz' ture shown, vertical tanks 1 Tand-2 Iare iprovided 1 with; pipei extensions 3 and .4- respectively-.leadingfrom the} bottom and in :these pipe extensions are arranged the. Ts 6 and 7. connectingwith thecheck valves 8 and 19. Each of r these check'llvalves isset to allow flow towardthe respective tankfi EGate valves wand-"r11 are provided to regulate the-speed of flow and these 1 connect -.with a balanced diaphragm valve 12 which is provided with an intake 13 at the bottom, which intake :is I connectedwith'the 'steannsystem; :The valve member 14 controlsthe flow in o .1 phragm. These In the-example shown; aduplicate *e'set is, illustrated a it ,is; 5 most .z desirahle for -.the. purpose oil a continuous feed. .4 :In" the; struc-I to connect' with the underside of .the diapipes have the gauges 40 arranged therein. 1 2,

Any pressure present in the tank flows in the pipes 25 and 32 or '26 and 33 a'ndin the pipes 36 and 39 or 37 and 39 thereby equalizing each side of the diaphragm of the respective valve but if water enters the pipes 32-01 33 the weight of such water upon.

connect the pipes 32 and 33 with itheu valves 29 and '30 reSpec-L and are normally held;closed by the springs opening oftheyair valve sdthat when the lfl ln 'a' means orcollecting and return- -top-.' This immediately forces' the': Watep: eolumnnleadingi 130m the'upper end of-the v. 1,605,467 BEST L- BL COPS.

the de e i n'te he w .2; tank eleeal es s q en y:- h am un of 2 is under-live steam-pressure ejecting,"tho working-mechanism togetbo'ut ofi iorder-is recheck 9 will be closed, consequently the re=-d11ced io the minimum.

turn steam-pressure wi l l not be snflicient to;-

-. Such-.aajlevice completely obviates. thev me-v force the condensation; thatdinection cha riig'alfliani lling of a large weight of Water g; -as is required in certaintr'aps now largely it will flow freely to his other tank passin throu hl, theeintenmediateenchesk; int ke/i841: w n-THEE I: M, I The valves 27 and 28 at the top of the tanks This system has been described as applied 1 and 2 are the ordinaryiair valyesi whichi t0:#a1-steam2boiler:but zit will be readily unclose automatically under steam temperature derstoocl that it may be applied to any and Whenithe *st'eain'to the tanl h a's bee'nl-cut 'system utili-zing a liquid; and. a gas I for efofi? the emperature immediately -drops and} fectihgen 'automatic tnansfe nof the condenthe-pressure :in 'tlie'ltank is first-reduced sate to the sour'ce.

by natural condensatibnkiand la'ter flby' sthejf 'What' h claim as myinvention.is:--

80. condensation is ioreed"in -bytlie return pres=- ingj oonde'nsation in gsteam systems, the comsu're 'the -'-a i -r in the -tank is released:-= {Theabim ationrwith';the:boiler and the condensawater flws in until' the tank fills}and then tion return, of a receiving tank connected flows inmate-pipe 32 and-thisjpipw'quiokly atdzhe top to :the boiler-steam pressure a pipe fills and the vater 'then 'flows in' td the-top"- leading to saidvtank fnoln: the return, apipe. of the diaphi:a gi ne."= 'l he'jyveighli ofltheycoh leading lirom said-tankto the boiler; a steam. umn? of' wa ter -overbalanees =thel pressure on ba lanc'edpiston ava-lve in ithezsteam line to the the dia hra m'and opensthei steamvalve tankoand spring-zoperated? to close-and. 21].:- allowing l-iv'e ste-arntoentep the tank at the ralrged below: said/tank; andza hydrostaticdownwardlyirom the tafiik throughthe out tank tohsaid balanced valveaand-radapted to flow check valve 19-'tothe feedlpipe leading throw said valve off balance to directlive to'the boiler. 'A's-the pressurefon the top of St GiIHiHIIiBOJbhQ'tOPL-Of thetank andsefiect the the tankisflequalized"with boiler pressure discharge: 'of'vthewater: therein to; the: boilen thewa'ten'imbothi the tank and'the static 2: 1-11" aineans-"fmi collecting; andre'turn-ingl column 32 will-"flow: quickly to -the lower condensatiominsteam systems, the com-binalevel'and asthe staticpressure on the di'a tion With the boiler and the-condensation ree phlegm-31 holding 'the' 'valve 29 openxre turn;ofizalreceivingwtank connected. atthe top duces'thebala-nce 'is restored and' the valveis to the boiln:steami pressure, a pipe'leading closed by the" springs-38; thus reli'eving the I tank fro-I i the boileli -pressureh in said pipeyza pipeleading fromnsaid tank The val ve 12'normallyallotvsgfree inflow to the. boiler, a check valve in; said-pipe, a to the tank- 1 and when: said tank -Lisunder steam balanced: piston: .valve in the stearn'line high: pressure, pres sure 'throngh the pipe to theitanl'arrangedabelow said. tank; and opensthe :valve' 12 al1owing the c0ndensa'" a hydrostatic column leadingiroinithe upper tl0'Il pI'6SS l1I8 'tO-ifi6W tothe tank 2 2s theen'dlofithwtank adapted: to :throw said valve tank 1 will be out off by the closin -:of tl1e ofl' balance-'to'wdirect live steam. into. theitop check 8rand wli'en theipres'sure 'o'n t e tank of t'he tank'iand -effectthe dischangeof the 1 is-releasedfollovving 'the discharge of the watenethereimtovthe. boiler. Water therefrom thewve'tlve:12 'is -automati -3=i In ai means for'collecting. and:- return-. oally' closed by its-internal spring-thus diingcQndenSation;insteamsystems, the-come rectingitheiwaterla aimto'the tank v bllliclfiORWl-flli thG-ibOllGIKZLDCLtlle condensat .F'romfltliis description-it will be readily tiOIi'i returng-offareceiving-tankconnected. understood that there will be no interruptiong at the top to the boiler steam pressure-,- ato the floW of the condensationyth at iszto. pipee leadinkgto. saidatank fnomtherretur n, say," it :ivill flow :continuouslyiito the valve at'heoklvalveninisaidtpipe, a pipe-leading l2lalndzwilliaccorrlingito the setting'of that fromi'sai'dr tainkftoutherboilerpa check-valve: valvebe-directed toieithe noneior'other oi the in said'rpipeg:anbalanced piston valvein the" tanks. :Immediatelyleitlien of: theatanksl is: steam line ito1tlie tank -havingi diaphragm filledzstherlivepressure' is automatically di to..operait same, :said valve. being arranged rected-t-o ther'toptheiieofi' and"instantaneous below: the'tamkg'wbranch steam 'pipesecondischarge follows-but whileithisgdischar'ge is: necteda-to'. eaehi si'delofiithe diaphragmofesaid occurring-the; other tanls'mayireceivelw balanced: valve", a; hydrostatic-column con- The. gate; valves may. beeman'ipulated to; nected'withlthe' tank, and a-.branch fromsaidv regulate the; flown-so that :the intakeand: column-,--connecteda at one .side of the diadiseh-arge 'Wi-ll-ioperate with substantially phragncmto; over-(balance the valve; and: opuniform; speech-so; that-therewill :becontim eraite thepiSliQIL-tOiOpeH' the steam line to the.- uous movement of the Watersandz st'eam.. tan-1 f E-heWOrkingJpartsain; a'structuresuch. as 4. In a meansdorcollecting, andireturm,

i describedware;limitedaentinelym taithe 34111107. ing condensatiendn;steamrsystems,theeomto said! tank lf-rdm thee return, a check valve bination with the boiler, of a pair of receiving tanks, steam pipes leading from the boiler steam pressure to the tops of said tanks, balanced valves in said steam pipes, hydrostatic means for controlling said steam pipes regulated by the water in the tanks, a return from the steam system leading to the bottom of said tanks, a steam operated valve control arranged in said return adapted to direct the flow of condensation to either tank, said control being actuated through the opening of the valve control ling the steam supply to one of the tanks, and feed pipes leading from said tanks to the boiler.

5. In a means for collecting and returning condensation in steam systems, the combination with the boiler, of a pair of receiv ing tanks, steam pipes leading from the boiler to the tops of said tanks, balanced valves in said steam pipes, hydrostatic means for controlling said steam pipes regulated by the water in the tanks, a return from the steam system leading to the bottom of said tanks, a three-way valve in said return BEST AVAlLABLE COP adapted to control the flow of condensation to either of said tanks, a diaphragm operating said valve, a steam pipe connected with said diaphragm and the top of one of the tanks, and feed pipes leading from said tanks to the boiler.

6. In a means for collecting and returning condensation in steam systems, the combination with the boiler, of a pair of receiving tanks, steam pipes leading from the boiler to the tops of said tanks, balanced valves in said steam pipes, hydrostatic means for controlling said steam pipes regulated by the water in the tanks, a return from the steam system leading to the bottom of said tanks, check valves in said return allowing inflow and preventing back flow from each tank, a steam controlled three-way valve arranged between said check valves, means connecting said steam controlled valve with the top of one of said tanks, feed pipes leading from the bottoms of said tanks to the boiler, and check valves in said feed pipes opening toward the boiler.

WILLIAM HUGH ROSE. 

